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/**CFile****************************************************************
FileName [mapperCreate.c]
PackageName [MVSIS 1.3: Multi-valued logic synthesis system.]
Synopsis [Generic technology mapping engine.]
Author [MVSIS Group]
Affiliation [UC Berkeley]
Date [Ver. 2.0. Started - June 1, 2004.]
Revision [$Id: mapperCreate.c,v 1.15 2005/02/28 05:34:26 alanmi Exp $]
***********************************************************************/
#include "mapperInt.h"
////////////////////////////////////////////////////////////////////////
/// DECLARATIONS ///
////////////////////////////////////////////////////////////////////////
static void Map_TableCreate( Map_Man_t * p );
static void Map_TableResize( Map_Man_t * p );
static Map_Node_t * Map_TableLookup( Map_Man_t * p, Map_Node_t * p1, Map_Node_t * p2 );
// hash key for the structural hash table
static inline unsigned Map_HashKey2( Map_Node_t * p0, Map_Node_t * p1, int TableSize ) { return ((unsigned)(p0) + (unsigned)(p1) * 12582917) % TableSize; }
////////////////////////////////////////////////////////////////////////
/// FUNCTION DEFITIONS ///
////////////////////////////////////////////////////////////////////////
/**Function*************************************************************
Synopsis [Reads parameters from the mapping manager.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
int Map_ManReadInputNum( Map_Man_t * p ) { return p->nInputs; }
int Map_ManReadOutputNum( Map_Man_t * p ) { return p->nOutputs; }
Map_Node_t ** Map_ManReadInputs ( Map_Man_t * p ) { return p->pInputs; }
Map_Node_t ** Map_ManReadOutputs( Map_Man_t * p ) { return p->pOutputs; }
Map_Node_t * Map_ManReadConst1 ( Map_Man_t * p ) { return p->pConst1; }
Map_Time_t * Map_ManReadInputArrivals( Map_Man_t * p ) { return p->pInputArrivals;}
Mio_Library_t * Map_ManReadGenLib ( Map_Man_t * p ) { return p->pSuperLib->pGenlib; }
bool Map_ManReadVerbose( Map_Man_t * p ) { return p->fVerbose; }
void Map_ManSetTimeToMap( Map_Man_t * p, int Time ) { p->timeToMap = Time; }
void Map_ManSetTimeToNet( Map_Man_t * p, int Time ) { p->timeToNet = Time; }
void Map_ManSetTimeSweep( Map_Man_t * p, int Time ) { p->timeSweep = Time; }
void Map_ManSetTimeTotal( Map_Man_t * p, int Time ) { p->timeTotal = Time; }
void Map_ManSetOutputNames( Map_Man_t * p, char ** ppNames ) { p->ppOutputNames = ppNames; }
void Map_ManSetAreaRecovery( Map_Man_t * p, int fAreaRecovery ) { p->fAreaRecovery = fAreaRecovery;}
void Map_ManSetDelayTarget( Map_Man_t * p, float DelayTarget ) { p->DelayTarget = DelayTarget;}
void Map_ManSetInputArrivals( Map_Man_t * p, Map_Time_t * pArrivals ) { p->pInputArrivals = pArrivals;}
void Map_ManSetObeyFanoutLimits( Map_Man_t * p, bool fObeyFanoutLimits ) { p->fObeyFanoutLimits = fObeyFanoutLimits; }
void Map_ManSetNumIterations( Map_Man_t * p, int nIterations ) { p->nIterations = nIterations; }
int Map_ManReadFanoutViolations( Map_Man_t * p ) { return p->nFanoutViolations; }
void Map_ManSetFanoutViolations( Map_Man_t * p, int nVio ) { p->nFanoutViolations = nVio; }
void Map_ManSetChoiceNodeNum( Map_Man_t * p, int nChoiceNodes ) { p->nChoiceNodes = nChoiceNodes; }
void Map_ManSetChoiceNum( Map_Man_t * p, int nChoices ) { p->nChoices = nChoices; }
void Map_ManSetVerbose( Map_Man_t * p, int fVerbose ) { p->fVerbose = fVerbose; }
/**Function*************************************************************
Synopsis [Reads parameters from the mapping node.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
Map_Man_t * Map_NodeReadMan( Map_Node_t * p ) { return p->p; }
char * Map_NodeReadData( Map_Node_t * p, int fPhase ) { return fPhase? p->pData1 : p->pData0; }
int Map_NodeReadNum( Map_Node_t * p ) { return p->Num; }
int Map_NodeReadLevel( Map_Node_t * p ) { return Map_Regular(p)->Level; }
Map_Cut_t * Map_NodeReadCuts( Map_Node_t * p ) { return p->pCuts; }
Map_Cut_t * Map_NodeReadCutBest( Map_Node_t * p, int fPhase ) { return p->pCutBest[fPhase]; }
Map_Node_t * Map_NodeReadOne( Map_Node_t * p ) { return p->p1; }
Map_Node_t * Map_NodeReadTwo( Map_Node_t * p ) { return p->p2; }
void Map_NodeSetData( Map_Node_t * p, int fPhase, char * pData ) { if (fPhase) p->pData1 = pData; else p->pData0 = pData; }
void Map_NodeSetNextE( Map_Node_t * p, Map_Node_t * pNextE ) { p->pNextE = pNextE; }
void Map_NodeSetRepr( Map_Node_t * p, Map_Node_t * pRepr ) { p->pRepr = pRepr; }
/**Function*************************************************************
Synopsis [Checks the type of the node.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
int Map_NodeIsConst( Map_Node_t * p ) { return (Map_Regular(p))->Num == -1; }
int Map_NodeIsVar( Map_Node_t * p ) { return (Map_Regular(p))->p1 == NULL && (Map_Regular(p))->Num >= 0; }
int Map_NodeIsAnd( Map_Node_t * p ) { return (Map_Regular(p))->p1 != NULL; }
int Map_NodeComparePhase( Map_Node_t * p1, Map_Node_t * p2 ) { assert( !Map_IsComplement(p1) ); assert( !Map_IsComplement(p2) ); return p1->fInv ^ p2->fInv; }
/**Function*************************************************************
Synopsis [Reads parameters from the cut.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
Map_Super_t * Map_CutReadSuperBest( Map_Cut_t * p, int fPhase ) { return p->M[fPhase].pSuperBest;}
Map_Super_t * Map_CutReadSuper0( Map_Cut_t * p ) { return p->M[0].pSuperBest;}
Map_Super_t * Map_CutReadSuper1( Map_Cut_t * p ) { return p->M[1].pSuperBest;}
int Map_CutReadLeavesNum( Map_Cut_t * p ) { return p->nLeaves; }
Map_Node_t ** Map_CutReadLeaves( Map_Cut_t * p ) { return p->ppLeaves; }
unsigned Map_CutReadPhaseBest( Map_Cut_t * p, int fPhase ) { return p->M[fPhase].uPhaseBest;}
unsigned Map_CutReadPhase0( Map_Cut_t * p ) { return p->M[0].uPhaseBest;}
unsigned Map_CutReadPhase1( Map_Cut_t * p ) { return p->M[1].uPhaseBest;}
/**Function*************************************************************
Synopsis [Reads parameters from the supergate.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
char * Map_SuperReadFormula( Map_Super_t * p ) { return p->pFormula; }
Mio_Gate_t * Map_SuperReadRoot( Map_Super_t * p ) { return p->pRoot; }
int Map_SuperReadNum( Map_Super_t * p ) { return p->Num; }
Map_Super_t ** Map_SuperReadFanins( Map_Super_t * p ) { return p->pFanins; }
int Map_SuperReadFaninNum( Map_Super_t * p ) { return p->nFanins; }
Map_Super_t * Map_SuperReadNext( Map_Super_t * p ) { return p->pNext; }
int Map_SuperReadNumPhases( Map_Super_t * p ) { return p->nPhases; }
unsigned char * Map_SuperReadPhases( Map_Super_t * p ) { return p->uPhases; }
int Map_SuperReadFanoutLimit( Map_Super_t * p ) { return p->nFanLimit;}
Mio_Library_t * Map_SuperLibReadGenLib( Map_SuperLib_t * p ) { return p->pGenlib; }
float Map_SuperLibReadAreaInv( Map_SuperLib_t * p ) { return p->AreaInv; }
Map_Time_t Map_SuperLibReadDelayInv( Map_SuperLib_t * p ) { return p->tDelayInv;}
int Map_SuperLibReadVarsMax( Map_SuperLib_t * p ) { return p->nVarsMax; }
/**Function*************************************************************
Synopsis [Create the mapping manager.]
Description [The number of inputs and outputs is assumed to be
known is advance. It is much simpler to have them fixed upfront.
When it comes to representing the object graph in the form of
AIG, the resulting manager is similar to the regular AIG manager,
except that it does not use reference counting (and therefore
does not have garbage collections). It does have table resizing.
The data structure is more flexible to represent additional
information needed for mapping.]
SideEffects []
SeeAlso []
***********************************************************************/
Map_Man_t * Map_ManCreate( int nInputs, int nOutputs, int fVerbose )
{
Map_Man_t * p;
int i;
// derive the supergate library
if ( Abc_FrameReadLibSuper(Abc_FrameGetGlobalFrame()) == NULL )
{
printf( "The supergate library is not specified. Use \"read_library\" or \"read_super\".\n" );
return NULL;
}
// start the manager
p = ALLOC( Map_Man_t, 1 );
memset( p, 0, sizeof(Map_Man_t) );
p->pSuperLib = Abc_FrameReadLibSuper(Abc_FrameGetGlobalFrame());
p->nVarsMax = p->pSuperLib->nVarsMax;
p->fVerbose = fVerbose;
p->fEpsilon = (float)0.00001;
assert( p->nVarsMax > 0 );
// start various data structures
Map_TableCreate( p );
Map_MappingSetupTruthTables( p->uTruths );
Map_MappingSetupTruthTablesLarge( p->uTruthsLarge );
// printf( "Node = %d bytes. Cut = %d bytes. Super = %d bytes.\n", sizeof(Map_Node_t), sizeof(Map_Cut_t), sizeof(Map_Super_t) );
p->mmNodes = Extra_MmFixedStart( sizeof(Map_Node_t) );
p->mmCuts = Extra_MmFixedStart( sizeof(Map_Cut_t) );
// make sure the constant node will get index -1
p->nNodes = -1;
// create the constant node
p->pConst1 = Map_NodeCreate( p, NULL, NULL );
p->vNodesAll = Map_NodeVecAlloc( 100 );
p->vNodesTemp = Map_NodeVecAlloc( 100 );
p->vMapping = Map_NodeVecAlloc( 100 );
p->vInside = Map_NodeVecAlloc( 100 );
p->vFanins = Map_NodeVecAlloc( 100 );
// create the PI nodes
p->nInputs = nInputs;
p->pInputs = ALLOC( Map_Node_t *, nInputs );
for ( i = 0; i < nInputs; i++ )
p->pInputs[i] = Map_NodeCreate( p, NULL, NULL );
// create the place for the output nodes
p->nOutputs = nOutputs;
p->pOutputs = ALLOC( Map_Node_t *, nOutputs );
memset( p->pOutputs, 0, sizeof(Map_Node_t *) * nOutputs );
return p;
}
/**Function*************************************************************
Synopsis [Deallocates the mapping manager.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
void Map_ManFree( Map_Man_t * p )
{
// int i;
// for ( i = 0; i < p->vNodesAll->nSize; i++ )
// Map_NodeVecFree( p->vNodesAll->pArray[i]->vFanouts );
// Map_NodeVecFree( p->pConst1->vFanouts );
if ( p->vInside )
Map_NodeVecFree( p->vInside );
if ( p->vFanins )
Map_NodeVecFree( p->vFanins );
if ( p->vAnds )
Map_NodeVecFree( p->vAnds );
if ( p->vNodesAll )
Map_NodeVecFree( p->vNodesAll );
if ( p->vNodesTemp )
Map_NodeVecFree( p->vNodesTemp );
if ( p->vMapping )
Map_NodeVecFree( p->vMapping );
Extra_MmFixedStop( p->mmNodes, 0 );
Extra_MmFixedStop( p->mmCuts, 0 );
FREE( p->pInputArrivals );
FREE( p->pInputs );
FREE( p->pOutputs );
FREE( p->pBins );
// FREE( p->ppOutputNames );
if ( p->pSimInfo ) FREE( p->pSimInfo[0] );
FREE( p->pSimInfo );
FREE( p );
}
/**Function*************************************************************
Synopsis [Deallocates the mapping manager.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
void Map_ManPrintTimeStats( Map_Man_t * p )
{
printf( "N-canonical = %d. Matchings = %d. Phases = %d. ", p->nCanons, p->nMatches, p->nPhases );
printf( "Choice nodes = %d. Choices = %d.\n", p->nChoiceNodes, p->nChoices );
PRT( "ToMap", p->timeToMap );
PRT( "Cuts ", p->timeCuts );
PRT( "Truth", p->timeTruth );
PRT( "Match", p->timeMatch );
PRT( "Area ", p->timeArea );
PRT( "Sweep", p->timeSweep );
PRT( "ToNet", p->timeToNet );
PRT( "TOTAL", p->timeTotal );
if ( p->time1 ) { PRT( "time1", p->time1 ); }
if ( p->time2 ) { PRT( "time2", p->time2 ); }
if ( p->time3 ) { PRT( "time3", p->time3 ); }
}
/**Function*************************************************************
Synopsis [Prints the mapping stats.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
void Map_ManPrintStatsToFile( char * pName, float Area, float Delay, int Time )
{
FILE * pTable;
pTable = fopen( "stats.txt", "a+" );
fprintf( pTable, "%s ", pName );
fprintf( pTable, "%4.2f ", Area );
fprintf( pTable, "%4.2f ", Delay );
fprintf( pTable, "%4.2f\n", (float)(Time)/(float)(CLOCKS_PER_SEC) );
fclose( pTable );
}
/**Function*************************************************************
Synopsis [Creates a new node.]
Description [This procedure should be called to create the constant
node and the PI nodes first.]
SideEffects []
SeeAlso []
***********************************************************************/
Map_Node_t * Map_NodeCreate( Map_Man_t * p, Map_Node_t * p1, Map_Node_t * p2 )
{
Map_Node_t * pNode;
// create the node
pNode = (Map_Node_t *)Extra_MmFixedEntryFetch( p->mmNodes );
memset( pNode, 0, sizeof(Map_Node_t) );
pNode->tRequired[0].Rise = pNode->tRequired[0].Fall = pNode->tRequired[0].Worst = MAP_FLOAT_LARGE;
pNode->tRequired[1].Rise = pNode->tRequired[1].Fall = pNode->tRequired[1].Worst = MAP_FLOAT_LARGE;
pNode->p1 = p1;
pNode->p2 = p2;
pNode->p = p;
// set the number of this node
pNode->Num = p->nNodes++;
// place to store the fanouts
// pNode->vFanouts = Map_NodeVecAlloc( 5 );
// store this node in the internal array
if ( pNode->Num >= 0 )
Map_NodeVecPush( p->vNodesAll, pNode );
else
pNode->fInv = 1;
// set the level of this node
if ( p1 )
{
// create the fanout info
Map_NodeAddFaninFanout( Map_Regular(p1), pNode );
Map_NodeAddFaninFanout( Map_Regular(p2), pNode );
pNode->Level = 1 + MAP_MAX(Map_Regular(pNode->p1)->Level, Map_Regular(pNode->p2)->Level);
pNode->fInv = Map_NodeIsSimComplement(p1) & Map_NodeIsSimComplement(p2);
}
// reference the inputs (will be used to compute the number of fanouts)
if ( p1 ) Map_NodeRef(p1);
if ( p2 ) Map_NodeRef(p2);
pNode->nRefEst[0] = pNode->nRefEst[1] = -1;
return pNode;
}
/**Function*************************************************************
Synopsis [Create the unique table of AND gates.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
void Map_TableCreate( Map_Man_t * pMan )
{
assert( pMan->pBins == NULL );
pMan->nBins = Cudd_Prime(5000);
pMan->pBins = ALLOC( Map_Node_t *, pMan->nBins );
memset( pMan->pBins, 0, sizeof(Map_Node_t *) * pMan->nBins );
pMan->nNodes = 0;
}
/**Function*************************************************************
Synopsis [Looks up the AND2 node in the unique table.]
Description [This procedure implements one-level hashing. All the nodes
are hashed by their children. If the node with the same children was already
created, it is returned by the call to this procedure. If it does not exist,
this procedure creates a new node with these children. ]
SideEffects []
SeeAlso []
***********************************************************************/
Map_Node_t * Map_TableLookup( Map_Man_t * pMan, Map_Node_t * p1, Map_Node_t * p2 )
{
Map_Node_t * pEnt;
unsigned Key;
if ( p1 == p2 )
return p1;
if ( p1 == Map_Not(p2) )
return Map_Not(pMan->pConst1);
if ( Map_NodeIsConst(p1) )
{
if ( p1 == pMan->pConst1 )
return p2;
return Map_Not(pMan->pConst1);
}
if ( Map_NodeIsConst(p2) )
{
if ( p2 == pMan->pConst1 )
return p1;
return Map_Not(pMan->pConst1);
}
if ( Map_Regular(p1)->Num > Map_Regular(p2)->Num )
pEnt = p1, p1 = p2, p2 = pEnt;
Key = Map_HashKey2( p1, p2, pMan->nBins );
for ( pEnt = pMan->pBins[Key]; pEnt; pEnt = pEnt->pNext )
if ( pEnt->p1 == p1 && pEnt->p2 == p2 )
return pEnt;
// resize the table
if ( pMan->nNodes >= 2 * pMan->nBins )
{
Map_TableResize( pMan );
Key = Map_HashKey2( p1, p2, pMan->nBins );
}
// create the new node
pEnt = Map_NodeCreate( pMan, p1, p2 );
// add the node to the corresponding linked list in the table
pEnt->pNext = pMan->pBins[Key];
pMan->pBins[Key] = pEnt;
return pEnt;
}
/**Function*************************************************************
Synopsis [Resizes the table.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
void Map_TableResize( Map_Man_t * pMan )
{
Map_Node_t ** pBinsNew;
Map_Node_t * pEnt, * pEnt2;
int nBinsNew, Counter, i, clk;
unsigned Key;
clk = clock();
// get the new table size
nBinsNew = Cudd_Prime(2 * pMan->nBins);
// allocate a new array
pBinsNew = ALLOC( Map_Node_t *, nBinsNew );
memset( pBinsNew, 0, sizeof(Map_Node_t *) * nBinsNew );
// rehash the entries from the old table
Counter = 0;
for ( i = 0; i < pMan->nBins; i++ )
for ( pEnt = pMan->pBins[i], pEnt2 = pEnt? pEnt->pNext: NULL; pEnt;
pEnt = pEnt2, pEnt2 = pEnt? pEnt->pNext: NULL )
{
Key = Map_HashKey2( pEnt->p1, pEnt->p2, nBinsNew );
pEnt->pNext = pBinsNew[Key];
pBinsNew[Key] = pEnt;
Counter++;
}
assert( Counter == pMan->nNodes - pMan->nInputs );
if ( pMan->fVerbose )
{
// printf( "Increasing the unique table size from %6d to %6d. ", pMan->nBins, nBinsNew );
// PRT( "Time", clock() - clk );
}
// replace the table and the parameters
free( pMan->pBins );
pMan->pBins = pBinsNew;
pMan->nBins = nBinsNew;
}
/**Function*************************************************************
Synopsis []
Description []
SideEffects []
SeeAlso []
***********************************************************************/
Map_Node_t * Map_NodeAnd( Map_Man_t * p, Map_Node_t * p1, Map_Node_t * p2 )
{
Map_Node_t * pNode;
pNode = Map_TableLookup( p, p1, p2 );
return pNode;
}
/**Function*************************************************************
Synopsis []
Description []
SideEffects []
SeeAlso []
***********************************************************************/
Map_Node_t * Map_NodeOr( Map_Man_t * p, Map_Node_t * p1, Map_Node_t * p2 )
{
Map_Node_t * pNode;
pNode = Map_Not( Map_TableLookup( p, Map_Not(p1), Map_Not(p2) ) );
return pNode;
}
/**Function*************************************************************
Synopsis []
Description []
SideEffects []
SeeAlso []
***********************************************************************/
Map_Node_t * Map_NodeExor( Map_Man_t * p, Map_Node_t * p1, Map_Node_t * p2 )
{
return Map_NodeMux( p, p1, Map_Not(p2), p2 );
}
/**Function*************************************************************
Synopsis []
Description []
SideEffects []
SeeAlso []
***********************************************************************/
Map_Node_t * Map_NodeMux( Map_Man_t * p, Map_Node_t * pC, Map_Node_t * pT, Map_Node_t * pE )
{
Map_Node_t * pAnd1, * pAnd2, * pRes;
pAnd1 = Map_TableLookup( p, pC, pT );
pAnd2 = Map_TableLookup( p, Map_Not(pC), pE );
pRes = Map_NodeOr( p, pAnd1, pAnd2 );
return pRes;
}
/**Function*************************************************************
Synopsis [Sets the node to be equivalent to the given one.]
Description [This procedure is a work-around for the equivalence check.
Does not verify the equivalence. Use at the user's risk.]
SideEffects []
SeeAlso []
***********************************************************************/
void Map_NodeSetChoice( Map_Man_t * pMan, Map_Node_t * pNodeOld, Map_Node_t * pNodeNew )
{
pNodeNew->pNextE = pNodeOld->pNextE;
pNodeOld->pNextE = pNodeNew;
pNodeNew->pRepr = pNodeOld;
}
////////////////////////////////////////////////////////////////////////
/// END OF FILE ///
////////////////////////////////////////////////////////////////////////
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